Earlier Tuesday, police identified Murphy as the woman several people reported seeing get out of her car on the eastbound I-78 bridge and leap over the side about 7:40 p.m. Monday.

Flynn said officials can't be 100 percent certain Murphy jumped until a body is found, but police found her car on the bridge and her family confirmed she is missing.

Several boats and a state police helicopter took part in the Monday and Tuesday searches.

New Jersey and Pennsylvania state police, Easton and Phillipsburg police, Pohatcong and Hunterdon firefighters searched for Murphy on Monday, until darkness interrupted the hunt.

While it was still light, rescue teams threw ropes into the river at Browns Drive, about 2 miles south of I-78. Pennsylvania Water Rescue took to the river from Canal Road. The search resumed Tuesday morning.

The interstate highway crosses the Delaware from Williams Township to Pohatcong Township. Interstate 78 has two parallel bridges, one each for eastbound and westbound traffic.